Search Results for 'arc euro'

[Joseph Noci 1Participant @josephnoci1]

A machine gets set up and tested on a test rig in a factory.

It may then travel half way around the world in a container, sit in storage for months or years, before being transported carefully to someone's workshop. It is then set up on a bench with no particular specification in uncontrolled temperature conditions.

If it is in perfect alignment and adjustment, that is more likely to be luck than quality production…

Neil

I suppose you may be correct, but I suspect it has a lot to due with the quality of the machine, and hence what it costs? Without trying to harp..My Emco 14D is by all counts a 'smallish' machine – It is the successor to the older Emco Super 11, so maybe in the Wabeco D6000, or between the Warco 1236 and 1230 models.

It was verified in the Emco factory before shipping to Namibia – a 2 month Sea journey, and then by road to me. An Emco rep was present for commissioning and performed the same verification as done at factory – NO noticeable change at all…37 measurements done..

I can post the Emco check sheets if anyone is interested, but the measurements are extensive – Runout on spindle internal, external and flat face ( all less than 0.0018mm!) Runout of test bar in chuck, including longitudinal runout from left to right ( ie, saddle moved from left to right with dial on bar) – less than 0.0022mm!, etc…They also measure the twist in the slide by attaching a DTI, and applying a set load on the slide, first at one end, then the other, and measure DTI deflection…

I realise that if you pay 50,000 or 80,000 Pounds for a machine , this level of return may be expected, but the 14D was WELL below that price – below 18,000 Pounds – which is 'only' 4 or so times the above mentioned Warco models.

I believe you get what you pay for in most cases..And I know one cannot compare a European made machine to one made in China, but by the same token, then,

It benefits from a little setting up but that's true of every lathe – anyone who thinks you can plonk a lathe down on a bench and expect it to give it's best without checking the gibs etc. is deluding themselves.

is really only applicable to a certain range of lathe or to a certain supply base, or maybe , more to the point, to a 'cheap' lathe as opposed to an inexpensive lathe..

Pedantic, I know, but…

I'll now do as that other fellow and get my coat..

Joe

[Neil WyattModerator @neilwyatt]

I had this response from HSE. I have to say the distinction between solder and free cutting bars seems highly dubious:

Dear Neil,

There are restrictions on the placing on the market of metallic lead (as a substance), of mixtures containing lead (e.g., alloys) and to articles containing lead.

Restriction 30 in Annex XVII of REACH prohibits the supply to the general public of substances that could cause reproductive harm. This also applies to any mixtures containing these substances when they are present at or above certain concentration limits. For metallic lead a harmonised classification was agreed and published in 2016 [Regulation (EU) 2016/1179] and this came into effect on the 1st March 2018. This classification included reproductive harm. As a consequence, the sale to the general public of metallic lead (as a substance) or mixtures containing lead is prohibited. The concentration at which this kicks in depends on the form of the substance/mixture: for powders with a size of < 1mm the limit is 0.03%, for particles or other larger forms where the size is >= 1mm the limit is 0.3%. Such products can still be supplied to professional users, however, they are required to be marked visibly, legibly and indelibly with ‘Restricted to professional users.’

Restriction 63 applies to articles containing lead. Part of this restriction applies to items of jewellery and part applies more generally to items that could be placed into the mouth by children. There are certain exemptions and derogations for both parts. Examples of items covered by this restriction are given in the associated guidance at **LINK**.

For solder wire one can try to make an argument that the wire is what REACH calls an ‘article’ (in which case Restriction 30 would not apply , but Restriction 63 potentially would). An article is an object that during its production has been given a specific shape surface or design that is more important to its use than its chemical composition is. Examples of a metal article are a spoon, a pipe, a cable/rope, etc. In our view, the shape of solder wire is entirely irrelevant to its function. Solder wire is deliberately melted during its use and the form of a wire is purely for convenience. As such, soldering alloys containing lead are mixtures and Restriction 30 applies. The same would apply to casting alloys containing lead (at > 0.3%).

Where metals or alloys are supplied in the form of sheets, bars, rods, etc, then it may be possible to argue that they are articles. The ECHA guidance on substances in articles contains a flow diagram that considers the boundary between metals and alloys being substances/mixtures (see Appendix 4 and pages 78-82). Items such as lead sheets or lead bearing phosphor bronzes and steels may be being supplied in the form of articles. Whilst these may subsequently be cut or deformed to some degree, the basic shape is usually retained or remains important. Depending on the subsequent use Restriction 63 may apply to the items being produced. If the suppliers decides that the items are articles, then Restriction 30 wouldn’t apply.

Kind regards

REACH & CLP Helpdesk

Chemicals Regulation Division

HSE, Redgrave Court, Bootle, Merseyside L20 7HS

[Ketan SwaliParticipant @ketanswali79440]

Unfortunately, I can’t recall that issue – project as I don’t have a copy to hand. The only one I can recall is the lubrication system articles which you can see in this link. Once you are on the linked page, click on the ‘More’ tab where you will see downloadable pdfs to Tony Jeffree’s articles on this from 2010.

Ketan at ARC

 

Edited By Ketan Swali on 08/11/2018 06:50:03

[Howard LewisParticipant @howardlewis46836]

If you need a Bristol type locking lever, again, Arc Euro list them as "Alumimium Indexable Handles"

Presumably, you would want the M8 stud type, 084-013-10063. if this is too short at 60mm long, you could Loctite a piece of M8 studding into a Nut type 084-013-00063.

On the RF 25, the Quill appears to be locked by a "nut", (Part No 5-26 "Fixed Tight Collar – Thread" ) with a chamfer or concave being pulled against a similar fitting ( Part No 5-25 "Fixed Tight Collar" ) with a clearance hole, to grip it.

Part No 5-24 is merely described as "Handle Rod" and is shown as a one piece handle, integral with the thread.

So IF the internal parts are still there, all that you need to do is to ascertain the thread, (Might be Whitworth! There are BSW threads and parts on my RF25 ) and make up a suitable handle and threaded rod to pull the two parts of the clamp together.

Doesn't sound to be too much of an insuperable job.

Even if the threaded and clearance "Fixed Tight Collars" are missing, it should be easy to make up a replacement locking arrangement.

If you wanted to stick with Whitworth threads, for consistency, you could make up a BSW threaded spindle, with a short M8 male thread on one end, to Loctite into a M8 NUT type handle.

At worst, just a few hours work.

Howard

Those silly Emojis may grin, but they don't do the same for me! hence the edit

Edited By Howard Lewis on 06/11/2018 16:28:15

[Howard LewisParticipant @howardlewis46836]

Pure Guesswork, but I would imagine that the RF31 was sold in UK by Warco as either the Minor, or the Major Mill/Drill . Probably Chester also sold the same machine in a different colour scheme.

(The RF25 was sold as the Warco Economy Mill/Drill)

They used to be offered, by Warco, with a choice of Metric or Imperial dials and leadscrews

At this distance of time, (approaching 20 years) I doubt if spares would be available from Importers

Arc Euro offer R8 to 3MT adaptors under their codes

For Tang tooling, 120- 010-00540, with a 7/16 UNF drawbar thread

Open, for Drawbar use 120-010-00500 (Unsuitable for Tang Tooling)

They are going to cost you around £13 each, plus P & P, I would imagine

Possibly, to accomodate the extra length, you may need a slightly extended drawbar (3/8 BSW likely)

If your 3MT tooling is M12 drawbar thread, there is enough meat in a male M12 thread to drill and tap for 3/8 BSW, to convert,

H T H

Howard

[JasonBModerator @jasonb]

I suggested the non tang version as I thought it more likely that it would be used for milling and the drawbar would be the best bet but if you want to use a tanged drill chuck then use these

[Simon Williams 3Participant @simonwilliams3]

Posted by JasonB on 06/11/2018 10:18:43:

If you want to run MT3 then stuck one of these up it,

… and note the comment on their website that this adaptor is not suitable to accept an MT3 tool with a tang. There's no socket for the standard morse tang up the spout.

Rgds Simon

[JasonBModerator @jasonb]

Almost the same as Grizzly's G0705, parts and user manual can be downloaded from them.

As said MT/R8 are usually factory options unless you want to completely strip the machine and change the spindle.

If you want to run MT3 then stuck one of these up it, but not quite as rigid and you loose height

[Mike PooleParticipant @mikepoole82104]

Personally R8 would be my first choice for the spindle taper, changing the spindle seems likely to be a major hassle and probably costly. Arceurotrade have adapters for R8 to MT3 if you just want to have the facility for taper tooling. If you have already got MT 3 tooling it may be cheaper and easier to replace it with R8 tooling rather than change the spindle. R8 collets give a useful saving in headroom but an R8 ER chuck and collet set will hold most cutters and straight shank drills and is a very convenient method of cutter holding.

Mike

[VicParticipant @vic]

Posted by JasonB on 29/10/2018 10:25:07:

Does seem odd that it has a LH especially as most of the others from the same supplier are right hand, wonder if the MT2 one was made with the Myford user in mind where the work is more likely to pass under the saw so reverse running means no climb cutting.

I got the link wrong, it should have been the MT3 version.

**LINK**

They both have left hand threads though.

Most of the others just say nut, they don’t say whether it’s left or right hand thread.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Vic on 29/10/2018 09:17:45:

The nut on the bottom of the arbor has a left hand thread.

**LINK**

.

That would explain it then.

… I am no longer surprised.

MichaelG.

[VicParticipant @vic]

The nut on the bottom of the arbor has a left hand thread.

**LINK**

[Ron LadenParticipant @ronladen17547]

Posted by JasonB on 25/10/2018 11:48:32:

Rather than waste a nice bit of 6082 25mm plate I found an old fingerplate which is some soft gummy ali but it will do for the purpose and it also made it easy to bandsaw out the waste before butting the two bits together.

Quick rough and ready free hand regrind of one of the tools supplied in this ARC set, it's the same head I'm using too and we are good to go.

As I have said before these variable speed benchtop mills and the vari speed lathes for that matter are better off run a bit faster with a slightly shallower cut than a big old industrial machine would typically use. So being aluminium and with a carbide tip I dialed up 500rpm. Cuts are 1mm off dia (0,5mm DOC) not the smoothest of feeds as I was only able to use one hand and could only add a drop of paraffin at the start. I have set the gibs as I do on my SOBA which is firm then I don't have to faff about loosening and then retightening each time a cut is put on.

Now the SX2.7 is a bit more rigid and has 750w rather than Rons SX2 at 500w so if he took off half that DOC it would not take too many passes to clean up the last 4mm of material left by stitch drilling with a 6mm drill 1mm inside finished diameter, could probably use quill lever to feed on the initial rough cuts.

Not much sign of chatter on the cut edge

Edited By JasonB on 25/10/2018 11:54:13

Thanks Jason for taking the time and effort to do this trial it certainly looked like a success. I will order the tooling from ARC and give it a go. Like you suggest if I take light cuts it should be ok, I wont rush it and it will be good to be able to do it myself plus I will have a boring head set for other jobs. I will start a thread later on the traction engine and post a sketch of how I am considering the boiler/firebox.

Thanks again, really appreciated

Ron

[JasonBModerator @jasonb]

Rather than waste a nice bit of 6082 25mm plate I found an old fingerplate which is some soft gummy ali but it will do for the purpose and it also made it easy to bandsaw out the waste before butting the two bits together.

Quick rough and ready free hand regrind of one of the tools supplied in this ARC set, it's the same head I'm using too and we are good to go.

As I have said before these variable speed benchtop mills and the vari speed lathes for that matter are better off run a bit faster with a slightly shallower cut than a big old industrial machine would typically use. So being aluminium and with a carbide tip I dialed up 500rpm. Cuts are 1mm off dia (0,5mm DOC) not the smoothest of feeds as I was only able to use one hand and could only add a drop of paraffin at the start. I have set the gibs as I do on my SOBA which is firm then I don't have to faff about loosening and then retightening each time a cut is put on.

 

 

Now the SX2.7 is a bit more rigid and has 750w rather than Rons SX2 at 500w so if he took off half that DOC it would not take too many passes to clean up the last 4mm of material left by stitch drilling with a 6mm drill 1mm inside finished diameter, could probably use quill lever to feed on the initial rough cuts.

 

 

Not much sign of chatter on the cut edge

 

 

Edited By JasonB on 25/10/2018 11:54:13

[HillclimberParticipant @hillclimber]

Must be the 000, according the Arc Euro site? Ketan seems to offer an 'adaptor' kit to replace the toolpost pin etc on a Myford for this size….

Cheers, Colin

[mechman48Participant @mechman48]

Posted by mechman48 on 24/10/2018 17:06:15:

Have a look here; I have used these on my mill without any probs so far. Change the batteries once a year, they can be use in the horizontal or vertical to suit your needs…

**LINK**

George.

edited to include link

[mechman48Participant @mechman48]

Have a look here; I have used these on my mill without any probs so far. Change the batteries once a year, they can be use in the horizontal or vertical to suit your needs…

https://www.arceurotrade.co.uk/Catalogue/Measurement/Digital-Readouts-with-Dedicated-Remote-Display/Digital-Readout-Bars-with-Dedicated-Remote-Display

George.

[Tony Pratt 1Participant @tonypratt1]

I & many others have been on this ‘journey’, although I had no problem using the original Dixon manufactured tool post in industry for many years the far eastern clones on offer today are not made to the same high standard & this can cause operational problems.

For that reason I recently sold my collection of little used Dixon type QCTP & holders & changed over to the Arc Euro trade wedge style lathe tool holding system.

As it uses a different type of clamping system any minor size differences from holder to holder do not affect the clamping strength.

Obviously others will have different stories to tell.

Tony

[Neil WyattModerator @neilwyatt]

You could try metalguard ultra, its a brush, spray or wipe on coating and apparently it's used by the military for storing items.

One advantage is you don't need to clean it off afterwards.

Neil

[VicParticipant @vic]

Posted by SillyOldDuffer on 22/10/2018 19:56:55:

Or you can get square holders like these. They have a slot on one side that allows the bar to be clamped.

Nice find Dave, shame they don’t do a 7mm.

[SillyOldDufferModerator @sillyoldduffer]

Or you can get square holders like these. They have a slot on one side that allows the bar to be clamped.

[Don CoxParticipant @doncox80133]

Have a look at the Myford web site under their "Collet Systems Adaptors and Collets" option. There's a nose piece collet holder to thread onto a Myford. for either ER25 and 32. ER 32 has a bigger holding capacity than ER25. There are lots of collet adaptors to get ER chucks to MT2, R8 and so on available from the usual sources, ARC Euro to the top right for instance.

[MWParticipant @mw27036]

Posted by JasonB on 20/10/2018 07:02:51:

Posted by Michael-w on 19/10/2018 20:40:10:

 

It might seem like a benefit at first but i envy the MT3 size over having an MT4 spindle, which is so awkward because those size collets are either expensive or rare as hens teeth.

Why do't you just buy a MT4-MT3 sleeve, same applies to the other big bore lathes which tend to come with an adaptor . Think mine came from ARC

It's a good idea, i have got a 4 -2 step down, i think from arc too, and i tried one of those collet chucks to it and it still gave me poor runout,(0.15mm) i think they have a bit of a reputation for.

I have never tried actual spindle collets in them though, maybe they're a cut above the typical bunch. It could be my collets too they're not branded but came from RDG or ARC.

I take it you'd need a bloody coarse thread to tighten up an MT4 collet if it could exist? 😛 I used M16 to make a drawbar for an ER40 taper chuck.

This is really on the backburner but i was planning to ditch the taper idea altogether and go with a flange mounted chuck, in the vain hope i might get better result. 

Obviously the only way to guarantee a totally concentric part is to turn between centres but a collet chuck has it's useful moments for when you need to work on the opposite side of a part in two stage turning operations. 

 

Edited By Michael-w on 20/10/2018 15:37:25

[Russell EberhardtParticipant @russelleberhardt48058]

This is a common problem with these mills. Try modifying the gib screws as shown in ARC's guide to rebuilding the X1 mill: **LINK**

Russell

[JasonBModerator @jasonb]

Posted by Michael-w on 19/10/2018 20:40:10:

It might seem like a benefit at first but i envy the MT3 size over having an MT4 spindle, which is so awkward because those size collets are either expensive or rare as hens teeth.

Why do't you just buy a MT4-MT3 sleeve, same applies to the other big bore lathes which tend to come with an adaptor . Think mine came from ARC